malacostracan
Upper-Intermediate (B2)
IPA: /ˌmæl.əˈkrɒs.tə.kən/
KK: /mæləkəˈstrækən/
adjective
Definition
Relating to a large class of crustaceans that includes crabs, lobsters, and shrimp.
Example
The malacostracan species are known for their diverse habitats and adaptations.
Conversation
Did you know that some scientists study malacostracan species in the ocean?
Really? I didn't even know what a malacostracan was until now!
They're basically a group of crustaceans, like crabs and shrimp.
That sounds fascinating! I should read more about them.
Synonyms & Antonyms
Synonyms
crustacean
marine
aquatic
Antonyms
terrestrial
freshwater
land
noun
Definition
A type of crustacean that belongs to the class Malacostraca, which includes animals like crabs, shrimp, and lobsters.
Example
The malacostracan is an important part of the marine ecosystem, serving as both predator and prey.
Conversation
Did you know that a malacostracan can be found in both freshwater and saltwater?
Really? I thought they only lived in the ocean.
Nope, there are many different types of malacostracans in rivers and lakes too!
Root Explanation
Malacostracan → It is formed from "malaco-" (from Greek "malakos", meaning soft) and "straca" (from Greek "ostrakon", meaning shell). The word refers to a class of crustaceans that have soft bodies and often a hard shell, such as crabs and lobsters.
Memory Tip
Think of 'soft' ('malaco-') and 'shell' ('ostrakon') to remember that malacostracans are soft-bodied creatures often protected by a hard shell.
Visually Confused Words
palaeostracan
palaeostraca